Double Eccentric Butterfly Valves
SIERRA model 7500 is an eccentric disc seated – double eccentric – butterfly valves. Valve body and discs are designed to provide minimal flow resistance.
Eccentric Butterfly Valve Product Overview |
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| Product Range | DN100 – DN2600 |
| Pressure Rating | PN10, PN16 and 25 |
| Temperature Range | -20°C TO +70°C |
| Flange Dimensions | EN1092-2 (DIN2501) |
| Hydrostatic Testing | EN12266, ISO5208 |
| Type Testing | EN1074-1&2 |
| Actuation | Manual with GB, and/or electrically actuated |
| Certificates | Manufactured under a certified ISO 9001 quality system |
| Applications | Municipal water and irrigation pipeline mains and distribution networks, pumping stations and intakes, ground reservoirs and elevated tanks, water treatment plants, primary and secondary cooling for power stations |
SIERRA model 7500 is an eccentric disc seated – double eccentric – butterfly valves. Valve body and discs are designed to provide minimal flow resistance. Precise tightness is ensured on both sides. The double eccentric effect enables the rubber sealing ring to separate easily from the body seat, results in a cam like motion to lift the seat from the seal during the first degree of opening, there by reduces the opening resistance, wear and improves the service life of the valve seat. The sealing ring can be easily changed in pipeline without disassembling the disc. 7500 BFV model is suitable for high-pressure waterworks applications, it is an excellent valve for isolation purposes, and it might also be used for throttling purposes under certain conditions
Main Product Features
- Double eccentric design prevents high friction between the disc rubber seal and body seat in during the first few degrees of opening and closing of the valve. The double eccentric design hence prolongs the life of the rubber seal.
- Stainless steel seat design, is welded and precisely machined inside the valve body hence: Providing a lower coefficient of friction during operation, high corrosion, and wear resistance
- Rubber seal & retainer mechanism (pressure activated rubber seal molded in one piece -no glued joint- is mechanically attached to a highly secured retainer sealing mechanism
- Tight closure in both direction at valve rating pressures
- Optimized disc design which provides minimal flow resistance
- Compact design which requires small space
- Flexible design allowing maintenance and replacement of disc seal in-line
BFV7500 with GB-series13-PN10
BFV7500 with GB-series13-PN16
BFV7500 with GB-series20-PN10
BFV7500 with GB-series20-PN16
BFV7500 with EA-series13-PN10
BFV7500 with EA-series13-PN16
BFV7500 with EA-series20-PN10
BFV7500 with EA-series20-PN16
2PBF100
CBF100
3PBF100
STBF100
